WO2022002283A2

WO2022002283A2 - Consumable chip and consumable chip response method, consumable cartridge, and storage medium

Info

Publication number: WO2022002283A2
Application number: PCT/CN2021/115131
Authority: WO
Inventors: 刘卫臣
Original assignee: 珠海艾派克微电子有限公司
Priority date: 2019-12-31
Filing date: 2021-08-27
Publication date: 2022-01-06
Also published as: EP4169723A4; US20230135115A1; CN113442597B; CN111703210A; WO2022002283A3; CN113442597A; EP4169723A2; CN111703210B

Abstract

A consumable chip and a consumable chip response method, a consumable cartridge, and a storage medium. The consumable chip stores target data and an indicator used to represent the category of the target data on the consumable chip, at least a portion of the data in the target data being used as the indicator. The target data is digitally signed or unsigned data. The method comprises: receiving an access request from a printing device; on the basis of the access request, selecting at least a portion of the data in the target data; and sending said portion of the data to the printing device in order to respond to the access request from the printing device. When the printing device acquires the indicator of the category of the target data, another third party cannot easily learn of the signature state of the data in the consumable chip, increasing the security of the chip.

Description

Consumable chip and response method of consumable chip, consumable box and storage medium

This application claims the priority of the Chinese patent application filed on June 30, 2020 with the application number 202010615229.1 and the application name "Consumable Chip and Consumable Chip Response Method", the entire contents of which are incorporated herein by reference middle.

technical field

The embodiments of the present application relate to the field of office consumables, and in particular, to a consumable chip, a consumable chip response method, a consumable box, and a storage medium.

Background technique

Printing equipment is an indispensable equipment in modern life. In the printing process, consumables boxes such as ink cartridges and toner cartridges are needed; in order to record the usage of the consumables boxes installed in the printing equipment, there are optional cartridges installed on the ink cartridges or toner cartridges. Disassembled consumable chips, such as toner cartridge chips, which are used to store toner cartridge related data, such as toner color, remaining toner amount, page yield (maximum number of printable pages), number of printed pages, manufacturer, production date, etc.

When the consumable chip communicates with the printing device, the printing device needs to verify whether the consumable chip is authentic and trustworthy. Therefore, a digital signature is generally stored in the consumable chip. When the digital signature is verified, it can indicate that the consumable chip is. believable. In some cases, when the digital signature is not stored in the consumable chip, the printing device also needs to communicate with the consumable chip. For example, a consumable chip on an original consumable box is used, and the digital signature stored in the consumable chip is to indicate that the consumable box is produced by a preset manufacturer. If the consumable chip on the consumable box is produced by a third party, there is often no digital signature information in the consumable chip. In this case, the printing device still needs to allow the use of consumable cartridges produced by third parties without digital signatures. Therefore, the printing device needs to be able to confirm whether the consumable chip has digital signature information. If there is digital signature information, the printing device will verify the digital signature to determine the authenticity of the consumable chip. If there is no digital signature information in the consumable chip, the printing device will no longer verify the digital signature information.

When the existing digital signature and unsigned data of the consumable chip are stored, two parts are generally stored, and the first part stores an indication, which can tell the printing device the type of data stored in the consumable chip, such as the signed data. The type is either an unsigned data type, and the other part stores the indicated signed data or unsigned data. The printing device can use this instruction to determine whether there is a digital signature in the consumable chip, and then determine whether to verify the digital signature. However, in this way, a special part needs to be set in the consumable chip to store an instruction, and this instruction can be easily obtained by other third parties. After obtaining this instruction, other third parties can easily know the signature status of the data in the consumable chip, thereby reducing the security of the chip.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a consumable chip and a consumable chip response method, a consumable box and a storage medium, which solve the problem that other third parties in the prior art can easily know the signature status of data in the consumable chip, thereby reducing chip security. Sexual technical issues.

In a first aspect, an embodiment of the present application provides a response method for a consumable chip, where the consumable chip stores target data and an indication representing the type of target data in the consumable chip, and at least a part of the target data is used for make the instruction; the target data is digitally signed or unsigned data; the method includes:

receive access requests from printing devices;

According to the access request, select at least a part of the target data;

The at least a portion of the data is sent to the printing device in response to an access request from the printing device.

Optionally, in the method described above, all of the indications are contained in the target data.

Optionally, in the above method, the indication is data of a fixed address in the target data.

Optionally, in the above method, the indication is data of multiple different addresses in the target data or common information of the data of the multiple different addresses.

Optionally, in the above-mentioned method, the indication is data selected from any address whose value is a preset value in the target data.

Optionally, in the above-mentioned method, at least a part of the data in the target data and the data other than the target data are used together as an indication of the type of the target data, so as to respond to the access request of the printing device.

Optionally, the above method, the method further includes:

receiving an access request from a printing device to the target data;

The target data is sent to a printing device in response to a request by the printing device to access the target data.

In a second aspect, an embodiment of the present application provides a consumable chip, including:

a storage module for storing target data and an indication for representing the type of target data in the consumable chip, at least a part of the target data is used as the indication; the target data is digitally signed or unsigned data .

Optionally, the above-mentioned consumable chip further includes:

The receiving module is used for receiving the access request of the printing device.

A selection module, configured to select at least a part of the target data according to the access request.

A sending module, configured to send the at least a part of the data to a printing device in response to an access request of the printing device.

Optionally, in the above-mentioned consumable chip, all the indications are included in the target data.

Optionally, in the above-mentioned consumable chip, the indication is data of a fixed address in the target data.

Optionally, in the above-mentioned consumable chip, the indication is the data of multiple different addresses in the target data or the common information of the data of the multiple different addresses.

Optionally, in the above-mentioned consumable chip, the indication is that data of different addresses is randomly selected from the target data as data corresponding to a preset value.

Optionally, in the above-mentioned consumable chip, at least a part of the data in the target data and data other than the target data are used together as the indication.

Optionally, the consumable chip as described above,

The receiving module is further configured to receive an access request from a printing device to the target data;

The sending module is further configured to send the target data to a printing device to respond to an access request of the printing device to the target data.

In a third aspect, an embodiment of the present application provides a consumable chip, including:

memory, processors and computer programs;

Wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any one of the first aspects.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to implement the method according to any one of the first aspects.

In a fifth aspect, an embodiment of the present application provides a consumables box, the consumables box includes the consumables chip according to the second aspect, and the consumables chip is detachably mounted on the consumables box.

In a sixth aspect, an embodiment of the present application provides a chip for running instructions, the chip includes a memory and a processor, the memory stores codes and data, the memory is coupled to the processor, and the processor runs The code in the memory enables the chip to perform the response method of the consumable chip of the first aspect.

In a seventh aspect, an embodiment of the present application provides a program product including instructions, which, when the program product runs on a computer, causes the computer to execute the method for responding to a consumable chip in the first aspect.

In an eighth aspect, an embodiment of the present application provides a computer program, which, when the computer program is executed by a processor, is used to execute the response method for a consumable chip described in the first aspect.

Embodiments of the present application provide a consumable chip and a consumable chip response method, a consumable box, and a storage medium. By storing target data and an indication representing the type of target data in the consumable chip, at least a part of the target data is used as instruction; the target data is digitally signed or unsigned data; receive the access request from the printing device to the instruction; select at least a part of the target data according to the access request; send at least part of the data to the printing device in response to the printing device's request for the instruction The access request, because a part of the data in the digital signature or unsigned data represents the indication of the type of the target data in the chip, so there is no need to set up a separate storage part to store the indication, and there is no need to fix the location of the storage indication, so it is obtained in the printing device. When the type of target data is indicated, it is difficult for other third parties to know the signature status of the data in the consumable chip, which increases the security of the chip.

It should be understood that the content described in the above summary section is not intended to limit the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become readily understood from the following description.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of a response method of a consumable chip according to an embodiment of the present application;

2 is a schematic diagram of data stored in a consumable chip in the prior art;

3 is a schematic diagram of data stored in a consumable chip according to an embodiment of the application;

4 is a schematic flowchart of another method for responding to a consumable chip according to an embodiment of the present application;

5 is a schematic diagram of data stored in another consumable chip according to an embodiment of the present application;

6 is a schematic diagram of data stored in still another consumable chip according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a consumable chip according to an embodiment of the application;

FIG. 8 is a schematic structural diagram of another consumable chip according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Example 1

FIG. 1 is a schematic flowchart of a response method of a consumable chip according to an embodiment of the present application. As shown in FIG. 1 , the execution body of the embodiment of the present application is a consumable chip, which may be, for example, a response device of the consumable chip, and the response device of the consumable chip may be Integrated in a consumable chip, the consumable chip stores target data and an indicator for representing the type of target data in the consumable chip, at least a portion of the target data is used as the indicator; the target The data is digitally signed or unsigned data; the response method of the consumable chip provided by this embodiment includes the following steps.

Step 101 , store target data and an indication representing the type of target data in the consumable chip, at least a part of the target data is used as an indication; the target data is digitally signed or unsigned data. In this embodiment, the consumable chip may store digital signature or unsigned data in the memory.

The definition and generation method of the digital signature are disclosed in US Patent No. 5,231,668 and will not be repeated here.

In this embodiment, if a digital signature is stored in the consumable chip, in addition to the digital signature, an indication indicating that the digital signature is stored in the consumable chip, that is, an indication that the type of the target data is a digital signature, is stored in the digital signature. At least a portion of the data is used as an indication that the digital signature is stored. If the consumable chip stores unsigned data, in addition to storing the unsigned data, it also stores an instruction indicating that no digital signature is stored in the consumable chip, that is, an instruction indicating that the type of the target data is unsigned data. At least a portion is used as an indication that no digital signature is stored. It can be seen that the above-mentioned instructions for indicating that the digital signature is stored in the consumable chip and the instruction indicating that the digital signature is not stored in the consumable chip are instructions for indicating the type of target data. The type of target data includes digital signatures. Signature data of this type.

The indication used to represent the type of target data in the consumable chip may be data of one byte or multiple bytes, or may be data of one bit/bit or multiple bits.

It can be understood that the numerical values used to indicate that the digital signature is stored in the consumable chip and the value used to indicate that the digital signature is not stored, that is, the indications that indicate the types of different target data are different. For example, in a consumable chip that stores a digital signature, it means that the type of target data is digital signature, and the indicated value is 0x11; in a consumable chip that does not store a digital signature, it means that the type of target data is unsigned data, The indicated value is 0x22.

Taking the target data as a digital signature, that is, a digital signature stored as an example, the indication for indicating that a digital signature is stored in the consumable chip and indicating that the target data is a digital signature is exemplified.

For example, Figure 2 shows a consumable chip in the prior art that includes a digital signature and its indication. The digital signature includes 8 bytes, which are represented by hexadecimal numbers in the figure, and the indication is one byte. The value in the figure is " 11”, the visible digital signature and instructions are stored in different locations/addresses of the consumable chip. In this embodiment, as shown in Figure 3, the data used for the instruction is no longer stored separately, but when the printing device requests an access instruction, the consumable chip selects a value from the digital signature that can indicate that the consumable chip stores the digital signature" 11", such as the seventh byte of the digital signature in Figure 3, is sent to the printing device as a response to the access request.

Step 102: Receive an access request from the printing device to the indication.

In this embodiment, the printing device communicates with the consumable chip, and the specific communication manner is not limited in this embodiment.

Specifically, in this embodiment, when the printing device needs to confirm whether the consumable chip has digital signature information, if there is digital signature information, the printing device will verify the digital signature to determine the authenticity of the consumable chip. If there is no digital signature information in the consumable chip, that is, unsigned data is stored in the consumable chip, the printing device will no longer verify the digital signature. Therefore, the printing device sends an access request for the indication to the consumables chip, and the consumables chip receives the access request for the indication.

The printing device can send an access request for a specific address (such as the address in which the indication is stored) to the consumable chip, or it can send an access request to continuously access multiple addresses, and the multiple addresses may include the indicated address, so the printing device sends an access request. The access request does not necessarily directly indicate that the instruction to be accessed is the instruction, and the consumable chip can reply the value of the instruction when receiving other access requests from the printing device.

Step 103: Select at least a part of the target data according to the access request.

In this embodiment, since the consumable chip pre-stores an indication representing the type of target data in the consumable chip, and at least a part of the target data is used as the indication during storage, according to the access request, it is determined that The storage mode of the indication in the target data, according to the storage mode of the indication, select at least a part of the corresponding data in the target data as the indication.

Step 104, sending at least a part of the data to the printing device in response to the access request of the printing device to the indication.

Specifically, in this embodiment, the consumable chip sends at least a part of the target data to the printing device. After the printing device obtains this part of the data, it can know the type of the target data in the consumable chip, that is, whether digital signature data is stored. Therefore, the consumable chip can select at least a part of the target data and send it to the printing device in response to the access request of the printing device.

Therefore, in combination with steps 101 to 104, in this embodiment, when a digital signature is stored in the consumable chip, a part of the data in the digital signature is used as an indication to indicate that the digital signature is stored in the consumable chip. When the printing device sends an access request, asking the consumable chip to send an indication of whether the consumable chip contains digital signature information, the consumable chip responds to the access request of the printing device and sends a part of the data in the digital signature to the printing device. After the printing device obtains this part of the data , it can be known that the digital signature data is stored in the consumable chip.

When no digital signature is stored in the consumable chip, unsigned data is stored in the consumable chip. When the printing device sends an access request, requiring the consumable chip to send an indication of whether the consumable chip contains digital signature information, that is, an indication indicating the type of target data, the consumable chip responds to the access request from the printing device and sends at least a part of the unsigned data. For the printing device, after acquiring this part of the data, the printing device knows that there is no digital signature data stored in the consumable chip, and the printing device no longer verifies the data signature.

In the response method of the consumable chip provided by this embodiment, by storing the target data and the indication used to represent the type of the target data in the consumable chip, at least a part of the data in the target data is used as the indication; the target data is digitally signed or unsigned data ; Receive the access request from the printing device to the instruction; according to the access request, select at least a part of the data in the target data; send at least a part of the data to the printing device, in response to the access request of the printing device to the instruction, due to the digital signature or unsigned data A part of the data in the chip represents the indication of the type of target data in the chip, so that there is no need to set up a separate storage part to store the indication, and there is no need to fix the location/address of the storage indication, so when the printing device obtains the indication of the type of target data, other It is difficult for a third party to know the signature status of the data in the consumable chip, which increases the security of the chip.

FIG. 4 is a schematic flowchart of another response method of a consumable chip according to an embodiment of the present application. As shown in FIG. 4 , the response method of the consumable chip provided by the present embodiment is the same as the response method of the consumable chip provided by the first embodiment of the present application. Based on this, step 101 is further refined, and further includes a step of receiving an access request from the printing device to the target data, and sending the target data to the printing device to respond to the printing device's access request to the target data. Then the response method of the consumable chip provided by this embodiment includes the following steps:

Step 201 , store target data and an indication representing the type of target data in the consumable chip, at least a part of the target data is used as the indication; the target data is digitally signed or unsigned data.

Optionally, in this embodiment, all indications used to represent the type of target data in the consumable chip are included in the target data.

Wherein, as an optional implementation manner, the indication used to represent the type of target data in the consumable chip is data of a fixed address in the target data. For example, it may be the data of the first address (the first address) in the digitally signed or unsigned data. In this way, when the consumable chip responds to the access request of the printing device, that is, asks whether it contains the digital signature information indication, the consumable chip can send the first address data of the digital signature or unsigned data to the printing device in a fixed manner.

It should be noted that, when the indication for indicating the type of target data in the consumable chip is stored in a fixed address in the digital signature or unsigned data of the consumable chip, the printing device does not need to send a separate pair of data indicating the type of target data. the indicated access request. The printing device can directly access these fixed addresses and read out the data in these addresses. After the printing device reads out the data of these addresses, the control program of the printing device presets which of these addresses the data is used as an instruction. Therefore, the printing apparatus obtains the data in the address used as the indication, and then knows whether the digital signature is stored in the chip of the consumable. In this way, the printing device does not issue an access request to read the indication of whether the consumable chip contains digital signature information, but the printing device can also find data representing the indication in the data. In this way, it is also impossible for a third party to learn the digital signature status of the consumable chip by collecting the communication process between the printing device and the consumable chip.

As another optional implementation manner, in order to enhance the security of the consumable chip, the indication used to represent the type of target data in the consumable chip may be data of multiple different addresses in the target data or data of multiple different addresses in the target data. Common information.

Specifically, in this embodiment, data of a plurality of different addresses in the digitally signed or unsigned data may be independently used as indications, and the data of these different addresses may have some common information. Therefore, the indication used to indicate the type of the target data in the consumable chip can be the common information of data of multiple different addresses. For example, the highest bit of the data of different addresses in the digital signature is 1, and the highest bit of the data of different addresses in the unsigned data is all the highest bit. If it is 0, assuming that when the indication is "1", it means that there is a digital signature, and when the indication is "0", it means that there is no digital signature, then the highest bit can be taken from any address and used as an indication. When the consumable chip responds to the request of the printing device whether it contains digital signature information, it randomly selects an address from multiple addresses in the digital signature or unsigned data, and sends the data of the selected address to the printing device. After the printing device receives the data, it determines that the highest bit of the data is 1, indicating that the digital signature is stored in the consumable chip, and then further requests the digital signature data of the consumable chip. The highest bit of the judgment data is 0, indicating that no digital signature is stored in the consumable chip, and the digital signature data of the consumable chip is no longer requested, or the signed/unsigned data read from the consumable chip is no longer verified.

Specifically, in this embodiment, the indication used to represent the type of target data in the consumable chip is a combination of data of multiple different addresses in the target data. As in Figure 5, a situation is shown where a number of different addresses in the digital signature are used together as an indication. Since the high-order four bits of the second byte of the digital signature in Figure 5 are hexadecimal number 1, and the low-order four bits of the third byte are hexadecimal number 1, the consumable chip can use the data from these two The data in different bytes are pieced together into the value "11" to respond to the access request of the printing device.

As yet another optional implementation, in this embodiment, in order to further enhance the security of the consumable chip, the indication used to represent the type of target data in the consumable chip is selected from any address in the target data whose value is a preset value. The data.

In this optional embodiment, for a consumable chip that stores a digital signature and indicates that the digital signature is stored, a preset value is first determined, for example, the preset value is "1". Then judge the value of the digital signature byte by byte, as shown in Figure 5, after judging the value of the digital signature byte by byte or randomly selecting bytes, the upper four bits of the second byte of the digital signature are the hexadecimal number 1 , which is the preset value "1". Then, when it is determined that the value is equal to "1", it is determined that the data of the address is selected as an indication. Since the address where the preset value "1" is determined is indeterminate, the indication is obtained by randomly selecting data at an arbitrary address from the target data. For a consumable chip that stores unsigned data and an indication indicating that no digital signature is stored (that is, indicating that the type of target data is unsigned data), a similar method can also be adopted to randomly select an appropriate value from the unsigned data as an indication, thereby There is no need to fix the location/address of the data used for the indication. Since the value indicating the indication can be any address in the digital signature or unsigned data (as long as the value of the address meets the requirements of the indication, that is, the above-mentioned preset value), it is difficult for a third party to determine the digital signature or unsigned data in the digital signature or the unsigned data. The indicated location, thereby further improving the security of the data.

Optionally, in this embodiment, at least a part of the data in the target data and the data other than the target data are taken together as an indication of the type of the target data, so as to respond to the access request of the printing device.

Specifically, those skilled in the art can understand that in the consumable chip, in addition to the digital signature and the indication for indicating that the digital signature is stored in the consumable chip, other data, such as color, remaining amount, page yield ( Maximum number of printable pages), number of printed pages, manufacturer, date of manufacture, serial number, etc. Therefore, in other embodiments, part of the data in the digital signature and other data other than the digital signature may be used together as an indication that the digital signature is stored in the consumable chip. When the consumable chip responds to the request of the printing device whether it contains the digital signature information, it sends the data other than the digital signature and a part of the data in the signature to the printing device together. For example, as shown in Figure 6, the indicated value "11" can use the low-order hexadecimal 1 of the third byte in the digital signature and the high-order hexadecimal of the data "10" outside the digital signature. The number 1 is formed, and the consumable chip extracts the value from these two places and sends it to the printing device.

Step 202: Receive an access request from the printing device to the indication.

Step 203, according to the access request, select at least a part of the target data.

Step 204, sending at least a part of the data to the printing device in response to the access request of the printing device to the indication.

In this embodiment, the implementation manners of steps 202 to 204 are the same as the implementation manners of steps 102 to 104 in the first embodiment of the present application, and details are not described herein again.

Step 205: Receive an access request from the printing device to the target data.

Wherein, if the target data stored in the consumable chip is a digital signature, the printing device sends an access request for the digital signature to the consumable chip after acquiring the instruction indicating that the digital signature is stored in the consumable chip from the consumable chip.

In the same way, if the target data stored in the consumable chip is unsigned data, after the printing device obtains the instruction indicating that no digital signature is stored in the consumable chip, it knows that there is no digital signature data stored in the consumable chip, and the printing device no longer checks the data. If the signature is verified, but the unsigned data can still be obtained from the consumable chip, an access request for the unsigned data is sent to the consumable chip.

Step 206: Send the target data to the printing device to respond to the printing device's access request for the target data.

In this embodiment, if the consumable chip receives the access request for the digital signature, it obtains the digital signature from the memory of the consumable chip, and sends the digital signature to the printing device. After the printing device receives the data signature data, the data signature is processed. Verification, after the verification is passed, it indicates that the consumable chip is authentic and credible.

Similarly, if the consumable chip receives an access request for unsigned data, it obtains the unsigned data from the memory of the consumable chip, and sends the unsigned data to the printing device. The printing device can receive the unsigned data and use the unsigned data. do further processing.

In the response method of the consumable chip provided by this embodiment, at least a part of the data in the digital signature or the unsigned data represents the indication of the type of target data in the consumable chip, so that there is no need to set up a separate storage part to store the instruction, and the consumables are increased. Chip security. Moreover, the storage methods of the instruction are diverse, which makes it more difficult for a third party to know the digital signature status of the consumable chip, and further increases the security of the consumable chip.

FIG. 7 is a schematic structural diagram of a consumable chip according to an embodiment of the present application. As shown in FIG. 7 , the consumable chip 70 provided in this embodiment includes: a storage module 71 .

Wherein, the storage module 71 is used to store target data and an indication representing the type of target data in the consumable chip, at least a part of the target data is used as an indication; the target data is digitally signed or unsigned data.

The consumables chip 70 may further include a receiving module 72, a selection module 73 and a sending module 74, wherein the receiving module 72 is configured to receive an access request from the printing device, for example, an access request for an indication. The selection module 73 is configured to select at least a part of the target data according to the access request. The sending module 74 is configured to send at least a part of the data to the printing device in response to the access request of the printing device.

The consumable chip provided in this embodiment can implement the technical solution of the method embodiment shown in FIG. 1 , and its implementation principle and technical effect are similar, and details are not repeated here.

Optionally, the indications representing the type of target data in the consumable chip are all contained in the target data.

As an optional implementation manner, the indication used to represent the type of target data in the consumable chip is data of a fixed address in the target data.

Or as another implementation manner, the indication used to represent the type of target data in the consumable chip is data of multiple different addresses in the target data or common information of data of multiple different addresses.

Or as another optional implementation manner, the indication used to represent the type of target data in the consumable chip is data selected from any address in the target data whose value is a preset value.

Optionally, at least a part of data in the target data and data other than the target data together serve as the indication.

Optionally, in this embodiment, the receiving module 72 is further configured to receive an access request from the printing device to the target data; the sending module 74 is further configured to send the target data to the printing device in response to the printing device accessing the target data ask.

The consumable chip provided in this embodiment can also implement the technical solution of the method embodiment shown in FIG. 4 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

FIG. 8 is a schematic structural diagram of another consumable chip according to an embodiment of the present application. As shown in FIG. 8 , the consumable chip 80 in the embodiment of the present application includes a memory 81 , a processor 82 and a computer program.

The computer program is stored in the memory 81 and is configured to be executed by the processor 82 to implement the response method of the consumable chip provided by the embodiment of the present application.

The relevant descriptions can be understood by referring to the relevant descriptions and effects corresponding to the steps in FIG. 1 and FIG. 4 , and details are not repeated here.

Wherein, in this embodiment, the memory 81 and the processor 82 are connected through a bus.

The memory can be, but is not limited to, random access memory (Random Access Memory, RAM), read only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable only memory Read memory (Erasable Programmable Read-Only Memory, EPROM), Electrically Erasable Programmable Read-Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), Flash Memory (Flash Memory), etc. The memory is also used to store the program, and the processor executes the program after receiving the execution instruction.

A processor may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), and the like. It may also be a digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Those skilled in the art should understand that the consumable chip of the present application includes a memory and a processor, the memory is used to store program instruction codes, and the processor is used to execute the program instruction code, so as to realize the data processing method applied to the consumable chip in the above-mentioned embodiments . The embodiments of the present application may be provided as methods, apparatuses, or computer program products. Accordingly, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The embodiment of the present application further provides a consumables box, the consumables box includes: a consumables chip, and the consumables chip is detachably installed on the consumables box.

Wherein, the consumable chip is the consumable chip shown in FIG. 7 or FIG. 8 , and the related description can refer to the description of the consumable chip shown in FIG. 7 or FIG. 8 , which will not be repeated here.

In this embodiment, the consumables box may be an ink cartridge, a toner cartridge or a toner cartridge, the ink cartridge can accommodate ink, and the toner cartridge or the toner cartridge can accommodate toner.

The embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the method for responding to a consumable chip provided by any one of the embodiments of the present application.

An embodiment of the present application further provides a chip for running instructions, the chip includes a memory and a processor, where code and data are stored in the memory, the memory is coupled with the processor, and the processor runs the memory in the memory The code of , enables the chip to execute any one of the response methods of the consumable chip in the above-mentioned embodiments.

Embodiments of the present application further provide a program product including instructions, the program product includes a computer program, and the computer program is stored in a computer-readable storage medium, and at least one processor can read from the computer-readable storage medium The computer program, when the at least one processor executes the computer program, can implement any one of the response methods of the consumable chip in the foregoing embodiments.

Embodiments of the present application further provide a computer program, which, when the computer program is executed by a processor, is used to execute any one of the response methods for a consumable chip in the foregoing embodiments.

The embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A response method for a consumable chip, the consumable chip stores target data and an indication for representing the type of target data in the consumable chip, and at least a part of data in the target data is used as the indication; the target data be digitally signed or unsigned data;

The method includes:

receive access requests from printing devices;

According to the access request, select at least a part of the target data;

The at least a portion of the data is sent to the printing device in response to an access request from the printing device.
The method of claim 1, wherein the indications are all contained in the target data.
The method according to claim 2, wherein the indication is data at a fixed address in the target data.
The method according to claim 2, wherein the indication is data of multiple different addresses in the target data or common information of the data of the multiple different addresses.
The method according to claim 2, wherein the indication is data selected from any address whose value is a preset value in the target data.
The method according to claim 1, wherein at least a part of data in the target data and data other than the target data are used together as an indication of the type of the target data, in response to an access request from a printing device.
The method according to any one of claims 1-6, wherein the method further comprises:

receiving an access request from a printing device to the target data;

The target data is sent to a printing device in response to an access request by the printing device to the target data.
A consumable chip, characterized in that it includes:

a storage module for storing target data and an indication for representing the type of target data in the consumable chip, at least a part of the target data is used as the indication; the target data is digitally signed or unsigned data .
The consumable chip according to claim 8, wherein the consumable chip further comprises:

A receiving module, used to receive an access request from the printing device;

a selection module, configured to select at least a part of the target data according to the access request;

A sending module, configured to send the at least a part of the data to the printing device in response to an access request of the printing device.
A consumable chip, characterized in that it includes:

memory, processors and computer programs;

wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any of claims 1-7.
A computer-readable storage medium, characterized in that a computer program is stored thereon, and the computer program is executed by a processor to implement the method according to any one of claims 1-7.
A consumables box, comprising: the consumables chip according to any one of claims 8-10, wherein the consumables chip is detachably mounted on the consumables box.
A chip for running instructions, characterized in that the chip includes a memory and a processor, the memory stores code and data, the memory is coupled to the processor, and the processor runs the code in the memory The chip is used to execute the response method of the consumable chip according to any one of claims 1 to 7.
A program product comprising instructions, characterized in that, when the program product is run on a computer, the computer is made to execute the response method for a consumable chip according to any one of claims 1 to 7.
A computer program, characterized in that, when the computer program is executed by a processor, it is used to execute the response method of the consumable chip according to any one of claims 1 to 7.